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(.NET Core C#) CSV Delete ColumnDemonstrates the DeleteColumn method.
// We have the following CSV... // permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round // lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b // mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed // flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a // infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a // gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed // chosenlist-com,ChosenList.com,5,web,Scottsdale,AZ,1-Oct-06,140000,USD,seed // digg,Digg,60,web,San Francisco,CA,1-Oct-05,2800000,USD,a // facebook,Facebook,450,web,Palo Alto,CA,1-Sep-04,500000,USD,angel // facebook,Facebook,450,web,Palo Alto,CA,1-May-05,12700000,USD,a // photobucket,Photobucket,60,web,Palo Alto,CA,1-May-06,10500000,USD,b // omnidrive,Omnidrive,,web,Palo Alto,CA,1-Dec-06,800000,USD,angel // geni,Geni,18,web,West Hollywood,CA,1-Jan-07,1500000,USD,a // twitter,Twitter,17,web,San Francisco,CA,1-Jul-07,5400000,USD,b // stumbleupon,StumbleUpon,,web,San Francisco,CA,1-Dec-05,1500000,USD,seed // gizmoz,Gizmoz,,web,Menlo Park,CA,1-May-07,6300000,USD,a // mahalo,Mahalo,40,web,Santa Monica,CA,1-Jan-06,5000000,USD,a bool success; bool bCrlf = true; Chilkat.StringBuilder sb = new Chilkat.StringBuilder(); sb.AppendLine("permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round",bCrlf); sb.AppendLine("lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b",bCrlf); sb.AppendLine("mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed",bCrlf); sb.AppendLine("flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a",bCrlf); sb.AppendLine("infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a",bCrlf); sb.AppendLine("gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed",bCrlf); sb.AppendLine("chosenlist-com,ChosenList.com,5,web,Scottsdale,AZ,1-Oct-06,140000,USD,seed",bCrlf); sb.AppendLine("digg,Digg,60,web,San Francisco,CA,1-Oct-05,2800000,USD,a",bCrlf); sb.AppendLine("facebook,Facebook,450,web,Palo Alto,CA,1-Sep-04,500000,USD,angel",bCrlf); sb.AppendLine("facebook,Facebook,450,web,Palo Alto,CA,1-May-05,12700000,USD,a",bCrlf); sb.AppendLine("photobucket,Photobucket,60,web,Palo Alto,CA,1-May-06,10500000,USD,b",bCrlf); sb.AppendLine("omnidrive,Omnidrive,,web,Palo Alto,CA,1-Dec-06,800000,USD,angel",bCrlf); sb.AppendLine("geni,Geni,18,web,West Hollywood,CA,1-Jan-07,1500000,USD,a",bCrlf); sb.AppendLine("twitter,Twitter,17,web,San Francisco,CA,1-Jul-07,5400000,USD,b",bCrlf); sb.AppendLine("stumbleupon,StumbleUpon,,web,San Francisco,CA,1-Dec-05,1500000,USD,seed",bCrlf); sb.AppendLine("gizmoz,Gizmoz,,web,Menlo Park,CA,1-May-07,6300000,USD,a",bCrlf); sb.AppendLine("mahalo,Mahalo,40,web,Santa Monica,CA,1-Jan-06,5000000,USD,a",bCrlf); Chilkat.Csv csv = new Chilkat.Csv(); // Indicate that the 1st line contains column names. csv.HasColumnNames = true; success = csv.LoadFromString(sb.GetAsString()); // Delete the "city" column, which is at index 4. (the 1st column is at index 0) success = csv.DeleteColumn(4); Debug.WriteLine(csv.SaveToString()); // Output is: // permalink,company,numEmps,category,state,fundedDate,raisedAmt,raisedCurrency,round // lifelock,LifeLock,,web,AZ,1-May-07,6850000,USD,b // mycityfaces,MyCityFaces,7,web,AZ,1-Jan-08,50000,USD,seed // flypaper,Flypaper,,web,AZ,1-Feb-08,3000000,USD,a // infusionsoft,Infusionsoft,105,software,AZ,1-Oct-07,9000000,USD,a // gauto,gAuto,4,web,AZ,1-Jan-08,250000,USD,seed // chosenlist-com,ChosenList.com,5,web,AZ,1-Oct-06,140000,USD,seed // digg,Digg,60,web,CA,1-Oct-05,2800000,USD,a // facebook,Facebook,450,web,CA,1-Sep-04,500000,USD,angel // facebook,Facebook,450,web,CA,1-May-05,12700000,USD,a // photobucket,Photobucket,60,web,CA,1-May-06,10500000,USD,b // omnidrive,Omnidrive,,web,CA,1-Dec-06,800000,USD,angel // geni,Geni,18,web,CA,1-Jan-07,1500000,USD,a // twitter,Twitter,17,web,CA,1-Jul-07,5400000,USD,b // stumbleupon,StumbleUpon,,web,CA,1-Dec-05,1500000,USD,seed // gizmoz,Gizmoz,,web,CA,1-May-07,6300000,USD,a // mahalo,Mahalo,40,web,CA,1-Jan-06,5000000,USD,a |
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